World's Most Evil Killers

Season 5 Episode 4: Keith Jesperson

The Happy Face Killer: A profile of the serial killer, whose chilling confession letters to the media and prosecutors were signed off with smiley faces.

Genre:

Documentary

Seasons:

10

Episodes:

98

Actor:

Fred Dinenage

Quality:

HD

Status:

Returning Series

First Air:

2018

IMDb:

7.8